diff --git a/spec/fixtures/components/rust_app/Cargo.lock b/spec/fixtures/components/rust_app/Cargo.lock
index 775f799..607cc01 100644
--- a/spec/fixtures/components/rust_app/Cargo.lock
+++ b/spec/fixtures/components/rust_app/Cargo.lock
@@ -59,15 +59,15 @@ checksum = "877a4ace8713b0bcf2a4e7eec82529c029f1d0619886d18145fea96c3ffe5c0f"
 
 [[package]]
 name = "foldhash"
-version = "0.1.5"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9c4f5dac5e15c24eb999c26181a6ca40b39fe946cbe4c263c7209467bc83af2"
+checksum = "77ce24cb58228fbb8aa041425bb1050850ac19177686ea6e0f41a70416f56fdb"
 
 [[package]]
 name = "hashbrown"
-version = "0.15.2"
+version = "0.16.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf151400ff0baff5465007dd2f3e717f3fe502074ca563069ce3a6629d07b289"
+checksum = "841d1cc9bed7f9236f321df977030373f4a4163ae1a7dbfe1a51a2c1a51d9100"
 dependencies = [
  "foldhash",
 ]
@@ -80,19 +80,20 @@ checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
 [[package]]
 name = "id-arena"
-version = "2.2.1"
+version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "25a2bc672d1148e28034f176e01fffebb08b35768468cc954630da77a1449005"
+checksum = "3d3067d79b975e8844ca9eb072e16b31c3c1c36928edf9c6789548c524d0d954"
 
 [[package]]
 name = "indexmap"
-version = "2.9.0"
+version = "2.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cea70ddb795996207ad57735b50c5982d8844f38ba9ee5f1aedcfb708a2aa11e"
+checksum = "7714e70437a7dc3ac8eb7e6f8df75fd8eb422675fc7678aff7364301092b1017"
 dependencies = [
  "equivalent",
  "hashbrown",
  "serde",
+ "serde_core",
 ]
 
 [[package]]
@@ -243,9 +244,9 @@ checksum = "ebc1c04c71510c7f702b52b7c350734c9ff1295c464a03335b00bb84fc54f853"
 
 [[package]]
 name = "wasm-encoder"
-version = "0.241.2"
+version = "0.245.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e01164c9dda68301e34fdae536c23ed6fe90ce6d97213ccc171eebbd3d02d6b8"
+checksum = "3f9dca005e69bf015e45577e415b9af8c67e8ee3c0e38b5b0add5aa92581ed5c"
 dependencies = [
  "leb128fmt",
  "wasmparser",
@@ -253,9 +254,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-metadata"
-version = "0.241.2"
+version = "0.245.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "876fe286f2fa416386deedebe8407e6f19e0b5aeaef3d03161e77a15fa80f167"
+checksum = "da55e60097e8b37b475a0fa35c3420dd71d9eb7bd66109978ab55faf56a57efb"
 dependencies = [
  "anyhow",
  "indexmap",
@@ -265,9 +266,9 @@ dependencies = [
 
 [[package]]
 name = "wasmparser"
-version = "0.241.2"
+version = "0.245.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46d90019b1afd4b808c263e428de644f3003691f243387d30d673211ee0cb8e8"
+checksum = "4f08c9adee0428b7bddf3890fc27e015ac4b761cc608c822667102b8bfd6995e"
 dependencies = [
  "bitflags",
  "hashbrown",
@@ -277,9 +278,9 @@ dependencies = [
 
 [[package]]
 name = "wit-bindgen"
-version = "0.48.1"
+version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7f8c2adb5f74ac9395bc3121c99a1254bf9310482c27b13f97167aedb5887138"
+checksum = "6e915216dde3e818093168df8380a64fba25df468d626c80dd5d6a184c87e7c7"
 dependencies = [
  "bitflags",
  "wit-bindgen-rust-macro",
@@ -287,9 +288,9 @@ dependencies = [
 
 [[package]]
 name = "wit-bindgen-core"
-version = "0.48.1"
+version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9b881a098cae03686d7a0587f8f306f8a58102ad8da8b5599100fbe0e7f5800b"
+checksum = "3deda4b7e9f522d994906f6e6e0fc67965ea8660306940a776b76732be8f3933"
 dependencies = [
  "anyhow",
  "heck",
@@ -298,9 +299,9 @@ dependencies = [
 
 [[package]]
 name = "wit-bindgen-rust"
-version = "0.48.1"
+version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "69667efa439a453e1d50dac939c6cab6d2c3ac724a9d232b6631dad2472a5b70"
+checksum = "863a7ab3c4dfee58db196811caeb0718b88412a0aef3d1c2b02fcbae1e37c688"
 dependencies = [
  "anyhow",
  "heck",
@@ -314,9 +315,9 @@ dependencies = [
 
 [[package]]
 name = "wit-bindgen-rust-macro"
-version = "0.48.1"
+version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eae2e22cceb5d105d52326c07e3e67603a861cc7add70fc467f7cc7ec5265017"
+checksum = "d14f3a9bfa3804bb0e9ab7f66da047f210eded6a1297ae3ba5805b384d64797f"
 dependencies = [
  "anyhow",
  "prettyplease",
@@ -329,9 +330,9 @@ dependencies = [
 
 [[package]]
 name = "wit-component"
-version = "0.241.2"
+version = "0.245.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1fd0c57df25e7ee612d946d3b7646c1ddb2310f8280aa2c17e543b66e0812241"
+checksum = "4894f10d2d5cbc17c77e91f86a1e48e191a788da4425293b55c98b44ba3fcac9"
 dependencies = [
  "anyhow",
  "bitflags",
@@ -348,11 +349,12 @@ dependencies = [
 
 [[package]]
 name = "wit-parser"
-version = "0.241.2"
+version = "0.245.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09ef1c6ad67f35c831abd4039c02894de97034100899614d1c44e2268ad01c91"
+checksum = "330698718e82983499419494dd1e3d7811a457a9bf9f69734e8c5f07a2547929"
 dependencies = [
  "anyhow",
+ "hashbrown",
  "id-arena",
  "indexmap",
  "log",
diff --git a/spec/fixtures/components/rust_app/Cargo.toml b/spec/fixtures/components/rust_app/Cargo.toml
index 7d312d2..1d1ba59 100644
--- a/spec/fixtures/components/rust_app/Cargo.toml
+++ b/spec/fixtures/components/rust_app/Cargo.toml
@@ -8,7 +8,7 @@ crate-type = ["cdylib"]
 
 [dependencies]
 # https://crates.io/crates/wit-bindgen
-wit-bindgen = "0.48"
+wit-bindgen = "0.53"
 serde_json = "1.0.145"
 once_cell = "1.21.3"
 ctor = "0.4.2"